Find IP IPv4 Network/Subnet and its host address ranges

What is an IPv4 IP address its network and host address ranges?

An IPv4 IP address is an address used in order to uniquely identify a device on an IP network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask. The 32 binary bits are broken into four octets (1 octet = 8 bits). Each octet is converted to decimal and separated by a period (dot).

How to Subnet IPv4? Its simple answer is that subnetting is the process of taking a network and splitting it into smaller networks, known as subnets. It's used to free up more public IPv4 addresses and segment networks for security and easier management.
Following are the ranges of IPv4 subnet/network address and their host addresses.

IPv4 AddressIPv6 Address
144.21.153.1 0:0:0:0:0:ffff:9015:9901
144.21.153.2 0:0:0:0:0:ffff:9015:9902
144.21.153.3 0:0:0:0:0:ffff:9015:9903
144.21.153.4 0:0:0:0:0:ffff:9015:9904
144.21.153.5 0:0:0:0:0:ffff:9015:9905
144.21.153.6 0:0:0:0:0:ffff:9015:9906
144.21.153.7 0:0:0:0:0:ffff:9015:9907
144.21.153.8 0:0:0:0:0:ffff:9015:9908
144.21.153.9 0:0:0:0:0:ffff:9015:9909
144.21.153.10 0:0:0:0:0:ffff:9015:990a
144.21.153.11 0:0:0:0:0:ffff:9015:990b
144.21.153.12 0:0:0:0:0:ffff:9015:990c
144.21.153.13 0:0:0:0:0:ffff:9015:990d
144.21.153.14 0:0:0:0:0:ffff:9015:990e
144.21.153.15 0:0:0:0:0:ffff:9015:990f
144.21.153.16 0:0:0:0:0:ffff:9015:9910
144.21.153.17 0:0:0:0:0:ffff:9015:9911
144.21.153.18 0:0:0:0:0:ffff:9015:9912
144.21.153.19 0:0:0:0:0:ffff:9015:9913
144.21.153.20 0:0:0:0:0:ffff:9015:9914
144.21.153.21 0:0:0:0:0:ffff:9015:9915
144.21.153.22 0:0:0:0:0:ffff:9015:9916
144.21.153.23 0:0:0:0:0:ffff:9015:9917
144.21.153.24 0:0:0:0:0:ffff:9015:9918
144.21.153.25 0:0:0:0:0:ffff:9015:9919
144.21.153.26 0:0:0:0:0:ffff:9015:991a
144.21.153.27 0:0:0:0:0:ffff:9015:991b
144.21.153.28 0:0:0:0:0:ffff:9015:991c
144.21.153.29 0:0:0:0:0:ffff:9015:991d
144.21.153.30 0:0:0:0:0:ffff:9015:991e
144.21.153.31 0:0:0:0:0:ffff:9015:991f
144.21.153.32 0:0:0:0:0:ffff:9015:9920
144.21.153.33 0:0:0:0:0:ffff:9015:9921
144.21.153.34 0:0:0:0:0:ffff:9015:9922
144.21.153.35 0:0:0:0:0:ffff:9015:9923
144.21.153.36 0:0:0:0:0:ffff:9015:9924
144.21.153.37 0:0:0:0:0:ffff:9015:9925
144.21.153.38 0:0:0:0:0:ffff:9015:9926
144.21.153.39 0:0:0:0:0:ffff:9015:9927
144.21.153.40 0:0:0:0:0:ffff:9015:9928
144.21.153.41 0:0:0:0:0:ffff:9015:9929
144.21.153.42 0:0:0:0:0:ffff:9015:992a
144.21.153.43 0:0:0:0:0:ffff:9015:992b
144.21.153.44 0:0:0:0:0:ffff:9015:992c
144.21.153.45 0:0:0:0:0:ffff:9015:992d
144.21.153.46 0:0:0:0:0:ffff:9015:992e
144.21.153.47 0:0:0:0:0:ffff:9015:992f
144.21.153.48 0:0:0:0:0:ffff:9015:9930
144.21.153.49 0:0:0:0:0:ffff:9015:9931
144.21.153.50 0:0:0:0:0:ffff:9015:9932
144.21.153.51 0:0:0:0:0:ffff:9015:9933
144.21.153.52 0:0:0:0:0:ffff:9015:9934
144.21.153.53 0:0:0:0:0:ffff:9015:9935
144.21.153.54 0:0:0:0:0:ffff:9015:9936
144.21.153.55 0:0:0:0:0:ffff:9015:9937
144.21.153.56 0:0:0:0:0:ffff:9015:9938
144.21.153.57 0:0:0:0:0:ffff:9015:9939
144.21.153.58 0:0:0:0:0:ffff:9015:993a
144.21.153.59 0:0:0:0:0:ffff:9015:993b
144.21.153.60 0:0:0:0:0:ffff:9015:993c


144.21.153.61 0:0:0:0:0:ffff:9015:993d
144.21.153.62 0:0:0:0:0:ffff:9015:993e
144.21.153.63 0:0:0:0:0:ffff:9015:993f
144.21.153.64 0:0:0:0:0:ffff:9015:9940
144.21.153.65 0:0:0:0:0:ffff:9015:9941
144.21.153.66 0:0:0:0:0:ffff:9015:9942
144.21.153.67 0:0:0:0:0:ffff:9015:9943
144.21.153.68 0:0:0:0:0:ffff:9015:9944
144.21.153.69 0:0:0:0:0:ffff:9015:9945
144.21.153.70 0:0:0:0:0:ffff:9015:9946
144.21.153.71 0:0:0:0:0:ffff:9015:9947
144.21.153.72 0:0:0:0:0:ffff:9015:9948
144.21.153.73 0:0:0:0:0:ffff:9015:9949
144.21.153.74 0:0:0:0:0:ffff:9015:994a
144.21.153.75 0:0:0:0:0:ffff:9015:994b
144.21.153.76 0:0:0:0:0:ffff:9015:994c
144.21.153.77 0:0:0:0:0:ffff:9015:994d
144.21.153.78 0:0:0:0:0:ffff:9015:994e
144.21.153.79 0:0:0:0:0:ffff:9015:994f
144.21.153.80 0:0:0:0:0:ffff:9015:9950
144.21.153.81 0:0:0:0:0:ffff:9015:9951
144.21.153.82 0:0:0:0:0:ffff:9015:9952
144.21.153.83 0:0:0:0:0:ffff:9015:9953
144.21.153.84 0:0:0:0:0:ffff:9015:9954
144.21.153.85 0:0:0:0:0:ffff:9015:9955
144.21.153.86 0:0:0:0:0:ffff:9015:9956
144.21.153.87 0:0:0:0:0:ffff:9015:9957
144.21.153.88 0:0:0:0:0:ffff:9015:9958
144.21.153.89 0:0:0:0:0:ffff:9015:9959
144.21.153.90 0:0:0:0:0:ffff:9015:995a
144.21.153.91 0:0:0:0:0:ffff:9015:995b
144.21.153.92 0:0:0:0:0:ffff:9015:995c
144.21.153.93 0:0:0:0:0:ffff:9015:995d
144.21.153.94 0:0:0:0:0:ffff:9015:995e
144.21.153.95 0:0:0:0:0:ffff:9015:995f
144.21.153.96 0:0:0:0:0:ffff:9015:9960
144.21.153.97 0:0:0:0:0:ffff:9015:9961
144.21.153.98 0:0:0:0:0:ffff:9015:9962
144.21.153.99 0:0:0:0:0:ffff:9015:9963
144.21.153.100 0:0:0:0:0:ffff:9015:9964
144.21.153.101 0:0:0:0:0:ffff:9015:9965
144.21.153.102 0:0:0:0:0:ffff:9015:9966
144.21.153.103 0:0:0:0:0:ffff:9015:9967
144.21.153.104 0:0:0:0:0:ffff:9015:9968
144.21.153.105 0:0:0:0:0:ffff:9015:9969
144.21.153.106 0:0:0:0:0:ffff:9015:996a
144.21.153.107 0:0:0:0:0:ffff:9015:996b
144.21.153.108 0:0:0:0:0:ffff:9015:996c
144.21.153.109 0:0:0:0:0:ffff:9015:996d
144.21.153.110 0:0:0:0:0:ffff:9015:996e
144.21.153.111 0:0:0:0:0:ffff:9015:996f
144.21.153.112 0:0:0:0:0:ffff:9015:9970
144.21.153.113 0:0:0:0:0:ffff:9015:9971
144.21.153.114 0:0:0:0:0:ffff:9015:9972
144.21.153.115 0:0:0:0:0:ffff:9015:9973
144.21.153.116 0:0:0:0:0:ffff:9015:9974
144.21.153.117 0:0:0:0:0:ffff:9015:9975
144.21.153.118 0:0:0:0:0:ffff:9015:9976
144.21.153.119 0:0:0:0:0:ffff:9015:9977
144.21.153.120 0:0:0:0:0:ffff:9015:9978


144.21.153.121 0:0:0:0:0:ffff:9015:9979
144.21.153.122 0:0:0:0:0:ffff:9015:997a
144.21.153.123 0:0:0:0:0:ffff:9015:997b
144.21.153.124 0:0:0:0:0:ffff:9015:997c
144.21.153.125 0:0:0:0:0:ffff:9015:997d
144.21.153.126 0:0:0:0:0:ffff:9015:997e
144.21.153.127 0:0:0:0:0:ffff:9015:997f
144.21.153.128 0:0:0:0:0:ffff:9015:9980
144.21.153.129 0:0:0:0:0:ffff:9015:9981
144.21.153.130 0:0:0:0:0:ffff:9015:9982
144.21.153.131 0:0:0:0:0:ffff:9015:9983
144.21.153.132 0:0:0:0:0:ffff:9015:9984
144.21.153.133 0:0:0:0:0:ffff:9015:9985
144.21.153.134 0:0:0:0:0:ffff:9015:9986
144.21.153.135 0:0:0:0:0:ffff:9015:9987
144.21.153.136 0:0:0:0:0:ffff:9015:9988
144.21.153.137 0:0:0:0:0:ffff:9015:9989
144.21.153.138 0:0:0:0:0:ffff:9015:998a
144.21.153.139 0:0:0:0:0:ffff:9015:998b
144.21.153.140 0:0:0:0:0:ffff:9015:998c
144.21.153.141 0:0:0:0:0:ffff:9015:998d
144.21.153.142 0:0:0:0:0:ffff:9015:998e
144.21.153.143 0:0:0:0:0:ffff:9015:998f
144.21.153.144 0:0:0:0:0:ffff:9015:9990
144.21.153.145 0:0:0:0:0:ffff:9015:9991
144.21.153.146 0:0:0:0:0:ffff:9015:9992
144.21.153.147 0:0:0:0:0:ffff:9015:9993
144.21.153.148 0:0:0:0:0:ffff:9015:9994
144.21.153.149 0:0:0:0:0:ffff:9015:9995
144.21.153.150 0:0:0:0:0:ffff:9015:9996
144.21.153.151 0:0:0:0:0:ffff:9015:9997
144.21.153.152 0:0:0:0:0:ffff:9015:9998
144.21.153.153 0:0:0:0:0:ffff:9015:9999
144.21.153.154 0:0:0:0:0:ffff:9015:999a
144.21.153.155 0:0:0:0:0:ffff:9015:999b
144.21.153.156 0:0:0:0:0:ffff:9015:999c
144.21.153.157 0:0:0:0:0:ffff:9015:999d
144.21.153.158 0:0:0:0:0:ffff:9015:999e
144.21.153.159 0:0:0:0:0:ffff:9015:999f
144.21.153.160 0:0:0:0:0:ffff:9015:99a0
144.21.153.161 0:0:0:0:0:ffff:9015:99a1
144.21.153.162 0:0:0:0:0:ffff:9015:99a2
144.21.153.163 0:0:0:0:0:ffff:9015:99a3
144.21.153.164 0:0:0:0:0:ffff:9015:99a4
144.21.153.165 0:0:0:0:0:ffff:9015:99a5
144.21.153.166 0:0:0:0:0:ffff:9015:99a6
144.21.153.167 0:0:0:0:0:ffff:9015:99a7
144.21.153.168 0:0:0:0:0:ffff:9015:99a8
144.21.153.169 0:0:0:0:0:ffff:9015:99a9
144.21.153.170 0:0:0:0:0:ffff:9015:99aa
144.21.153.171 0:0:0:0:0:ffff:9015:99ab
144.21.153.172 0:0:0:0:0:ffff:9015:99ac
144.21.153.173 0:0:0:0:0:ffff:9015:99ad
144.21.153.174 0:0:0:0:0:ffff:9015:99ae
144.21.153.175 0:0:0:0:0:ffff:9015:99af
144.21.153.176 0:0:0:0:0:ffff:9015:99b0
144.21.153.177 0:0:0:0:0:ffff:9015:99b1
144.21.153.178 0:0:0:0:0:ffff:9015:99b2
144.21.153.179 0:0:0:0:0:ffff:9015:99b3
144.21.153.180 0:0:0:0:0:ffff:9015:99b4


144.21.153.181 0:0:0:0:0:ffff:9015:99b5
144.21.153.182 0:0:0:0:0:ffff:9015:99b6
144.21.153.183 0:0:0:0:0:ffff:9015:99b7
144.21.153.184 0:0:0:0:0:ffff:9015:99b8
144.21.153.185 0:0:0:0:0:ffff:9015:99b9
144.21.153.186 0:0:0:0:0:ffff:9015:99ba
144.21.153.187 0:0:0:0:0:ffff:9015:99bb
144.21.153.188 0:0:0:0:0:ffff:9015:99bc
144.21.153.189 0:0:0:0:0:ffff:9015:99bd
144.21.153.190 0:0:0:0:0:ffff:9015:99be
144.21.153.191 0:0:0:0:0:ffff:9015:99bf
144.21.153.192 0:0:0:0:0:ffff:9015:99c0
144.21.153.193 0:0:0:0:0:ffff:9015:99c1
144.21.153.194 0:0:0:0:0:ffff:9015:99c2
144.21.153.195 0:0:0:0:0:ffff:9015:99c3
144.21.153.196 0:0:0:0:0:ffff:9015:99c4
144.21.153.197 0:0:0:0:0:ffff:9015:99c5
144.21.153.198 0:0:0:0:0:ffff:9015:99c6
144.21.153.199 0:0:0:0:0:ffff:9015:99c7
144.21.153.200 0:0:0:0:0:ffff:9015:99c8
144.21.153.201 0:0:0:0:0:ffff:9015:99c9
144.21.153.202 0:0:0:0:0:ffff:9015:99ca
144.21.153.203 0:0:0:0:0:ffff:9015:99cb
144.21.153.204 0:0:0:0:0:ffff:9015:99cc
144.21.153.205 0:0:0:0:0:ffff:9015:99cd
144.21.153.206 0:0:0:0:0:ffff:9015:99ce
144.21.153.207 0:0:0:0:0:ffff:9015:99cf
144.21.153.208 0:0:0:0:0:ffff:9015:99d0
144.21.153.209 0:0:0:0:0:ffff:9015:99d1
144.21.153.210 0:0:0:0:0:ffff:9015:99d2
144.21.153.211 0:0:0:0:0:ffff:9015:99d3
144.21.153.212 0:0:0:0:0:ffff:9015:99d4
144.21.153.213 0:0:0:0:0:ffff:9015:99d5
144.21.153.214 0:0:0:0:0:ffff:9015:99d6
144.21.153.215 0:0:0:0:0:ffff:9015:99d7
144.21.153.216 0:0:0:0:0:ffff:9015:99d8
144.21.153.217 0:0:0:0:0:ffff:9015:99d9
144.21.153.218 0:0:0:0:0:ffff:9015:99da
144.21.153.219 0:0:0:0:0:ffff:9015:99db
144.21.153.220 0:0:0:0:0:ffff:9015:99dc
144.21.153.221 0:0:0:0:0:ffff:9015:99dd
144.21.153.222 0:0:0:0:0:ffff:9015:99de
144.21.153.223 0:0:0:0:0:ffff:9015:99df
144.21.153.224 0:0:0:0:0:ffff:9015:99e0
144.21.153.225 0:0:0:0:0:ffff:9015:99e1
144.21.153.226 0:0:0:0:0:ffff:9015:99e2
144.21.153.227 0:0:0:0:0:ffff:9015:99e3
144.21.153.228 0:0:0:0:0:ffff:9015:99e4
144.21.153.229 0:0:0:0:0:ffff:9015:99e5
144.21.153.230 0:0:0:0:0:ffff:9015:99e6
144.21.153.231 0:0:0:0:0:ffff:9015:99e7
144.21.153.232 0:0:0:0:0:ffff:9015:99e8
144.21.153.233 0:0:0:0:0:ffff:9015:99e9
144.21.153.234 0:0:0:0:0:ffff:9015:99ea
144.21.153.235 0:0:0:0:0:ffff:9015:99eb
144.21.153.236 0:0:0:0:0:ffff:9015:99ec
144.21.153.237 0:0:0:0:0:ffff:9015:99ed
144.21.153.238 0:0:0:0:0:ffff:9015:99ee
144.21.153.239 0:0:0:0:0:ffff:9015:99ef
144.21.153.240 0:0:0:0:0:ffff:9015:99f0
144.21.153.241 0:0:0:0:0:ffff:9015:99f1
144.21.153.242 0:0:0:0:0:ffff:9015:99f2
144.21.153.243 0:0:0:0:0:ffff:9015:99f3
144.21.153.244 0:0:0:0:0:ffff:9015:99f4
144.21.153.245 0:0:0:0:0:ffff:9015:99f5
144.21.153.246 0:0:0:0:0:ffff:9015:99f6
144.21.153.247 0:0:0:0:0:ffff:9015:99f7
144.21.153.248 0:0:0:0:0:ffff:9015:99f8
144.21.153.249 0:0:0:0:0:ffff:9015:99f9
144.21.153.250 0:0:0:0:0:ffff:9015:99fa
144.21.153.251 0:0:0:0:0:ffff:9015:99fb
144.21.153.252 0:0:0:0:0:ffff:9015:99fc
144.21.153.253 0:0:0:0:0:ffff:9015:99fd
144.21.153.254 0:0:0:0:0:ffff:9015:99fe
144.21.153.255 0:0:0:0:0:ffff:9015:99ff


How we got IPv4 subnet masks?

An IPv4 subnet mask consists of 32 bits; it is a sequence of ones (1) followed by a block of zeros (0). The ones indicate bits in the address used for the network prefix and the trailing block of zeros designates that part as being the host identifier.